Fatal error: Uncaught Error: Class "Sylius\Bundle\CoreBundle\Doctrine\Migrations\AbstractMigration" not found in /home/flighto/e-commerce/vendor/sylius/paypal-plugin/src/Migrations/Version20200907102535.php:10 Stack trace: #0 {main} thrown in /home/flighto/e-commerce/vendor/sylius/paypal-plugin/src/Migrations/Version20200907102535.php on line 10